From: Stephen Hemminger <stephen@networkplumber.org>
To: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Cc: Ori Kam <orika@nvidia.com>, Xiaoyun Li <xiaoyun.li@intel.com>,
Ray Kinsella <mdr@ashroe.eu>,
Ajit Khaparde <ajit.khaparde@broadcom.com>,
Somnath Kotur <somnath.kotur@broadcom.com>,
Nithin Dabilpuram <ndabilpuram@marvell.com>,
Kiran Kumar K <kirankumark@marvell.com>,
Sunil Kumar Kori <skori@marvell.com>,
Satha Rao <skoteshwar@marvell.com>,
"Min Hu (Connor)" <humin29@huawei.com>,
Yisen Zhuang <yisen.zhuang@huawei.com>,
Lijun Ou <oulijun@huawei.com>,
Qiming Yang <qiming.yang@intel.com>,
Qi Zhang <qi.z.zhang@intel.com>, Matan Azrad <matan@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
Jerin Jacob <jerinj@marvell.com>,
Jasvinder Singh <jasvinder.singh@intel.com>,
Cristian Dumitrescu <cristian.dumitrescu@intel.com>,
Thomas Monjalon <thomas@monjalon.net>,
Ferruh Yigit <ferruh.yigit@intel.com>,
dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] ethdev: remove deprecated shared counter attribute
Date: Tue, 28 Sep 2021 08:58:07 -0700 [thread overview]
Message-ID: <20210928085807.7bbb50c9@hermes.local> (raw)
In-Reply-To: <20210928152300.989961-1-andrew.rybchenko@oktetlabs.ru>
On Tue, 28 Sep 2021 18:23:00 +0300
Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru> wrote:
> @@ -2498,24 +2498,11 @@ struct rte_flow_query_age {
> * Counters can be retrieved and reset through ``rte_flow_query()``, see
> * ``struct rte_flow_query_count``.
> *
> - * @deprecated Shared attribute is deprecated, use generic
> - * RTE_FLOW_ACTION_TYPE_INDIRECT action.
> - *
> - * The shared flag indicates whether the counter is unique to the flow rule the
> - * action is specified with, or whether it is a shared counter.
> - *
> - * For a count action with the shared flag set, then then a global device
> - * namespace is assumed for the counter id, so that any matched flow rules using
> - * a count action with the same counter id on the same port will contribute to
> - * that counter.
> - *
> * For ports within the same switch domain then the counter id namespace extends
> * to all ports within that switch domain.
> */
> struct rte_flow_action_count {
> - /** @deprecated Share counter ID with other flow rules. */
> - uint32_t shared:1;
> - uint32_t reserved:31; /**< Reserved, must be zero. */
> + uint32_t reserved; /**< Reserved, must be zero. */
> uint32_t id; /**< Counter ID. */
Reserved fields are often source of future problems.
You should change each driver to check that reserved field
return -ENOTSUP if non-zero. That way if reserved field is ever
used in future it won't break API/ABI.
The other option is to just remove the reserved field and take the API/ABI
hit now.
next prev parent reply other threads:[~2021-09-28 15:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-28 15:23 Andrew Rybchenko
2021-09-28 15:58 ` Stephen Hemminger [this message]
2021-09-28 16:25 ` Andrew Rybchenko
2021-10-05 19:11 ` Thomas Monjalon
2021-10-05 19:48 ` Ajit Khaparde
2021-10-06 9:45 ` Matan Azrad
2021-10-08 10:23 ` Andrew Rybchenko
2021-10-06 9:52 ` Somnath Kotur
2021-10-06 12:04 ` Ori Kam
2021-10-08 10:26 ` [dpdk-dev] [PATCH v2] " Andrew Rybchenko
2021-10-11 10:02 ` Ori Kam
2021-10-11 10:41 ` Andrew Rybchenko
2021-10-11 11:25 ` Ori Kam
2021-10-11 10:02 ` Matan Azrad
2021-10-12 17:24 ` Ferruh Yigit
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